JPH0750548Y2 - Panel shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a panel shutter in which panels forming a shutter curtain are connected to a pair of left and right roller chains at predetermined intervals.

[Conventional technology]

As shown in FIGS. 7 and 8, this type of panel shutter has roller shafts 2 of upper guide rollers 1 projecting from the left and right ends of each panel P _{1 to} P ₈ forming a shutter curtain at predetermined intervals. The pair of left and right roller chains 3 attached
Each panel is driven by a sprocket 4 that rotates in the opening and closing direction of the shutter, and when the sprocket 4 is rotated in the opening direction of the shutter to wind up the roller chain 3.
P ₁ to P ₈ is raised sequentially in a vertical state, each panel P ₁ to P _7, except for the bottom panel P ₈ which forms the lower end of the shutter curtain,
Passing the sprocket 4 while keeping its vertical state,
Moving to the storage rail 5 that guides the upper guide roller 1,
The housing 6 is housed in the casing 6 so as to be adjacent to the front and rear along the rail 5.

At this time, the top panel that forms the upper edge of the shutter curtain
The extra length 3a of each roller chain 3 for lifting and lowering P ₁ from the sprocket 4 causes slack between the storage rail 5 and the free end that slides along the chain guide 7 arranged in parallel. When the slack gradually increases and the top panel P ₁ reaches a predetermined storage position, the slack hangs lower than the lower guide rollers 8 projecting from the left and right ends of the top panel P ₁ .

[Problems to be solved by the device]

Therefore, when the slack of the extra length portion 3a hangs outward while swinging toward the bracket 9 in which the storage rail 5 is mounted in the casing 6, the lower guide of the top panel P ₁ is inserted into the loop of the slack. The roller 8 may enter.

Then, in such a state, when the sprocket 4 is rotated in the shutter closing direction, the extra length portion 3a of the roller chain 3 driven by the sprocket 4 becomes
As shown in the figure, the lower guide roller 8 of the top panel P ₁
Hooked to, lift the panel P ₁ horizontally,
At the same time that the shutter could not be fully closed, panel P ₁ could be damaged.

Therefore, the present invention has a technical problem to prevent the extra length portion 3a of the roller chain 3 from being caught by the lower guide roller 8 of the top panel P ₁ .

[Means for Solving the Problems]

In order to solve this problem, according to the present invention, a pair of left and right roller chains in which roller shafts of upper guide rollers projecting from the left and right ends of each panel forming a shutter curtain are attached at a predetermined interval in a shutter opening and closing direction. Each panel is driven by a rotating sprocket, and when the sprocket is rotated in the opening direction of the shutter to wind up the roller chain, the panels are sequentially lifted in a vertical state, and each panel except the bottom panel forming the lower end of the shutter curtain. However, while maintaining the vertical state, it passes through the sprocket and moves to a storage rail that guides the upper guide roller,
In the panel shutters that are housed adjacent to each other in the front-rear direction along the rail, the top panel that forms the upper end of the shutter curtain is suspended from the sprocket and lifted up and down. The roller shafts of the guide rollers are attached to the roller shafts of the upper guide rollers projecting from both ends with a constant space therebetween, and the respective guide rollers are connected such that one end side of the guide rollers is vertically rotatable with respect to the upper part of the top panel. It is configured to be supported by a bearing provided on the other end side of an elastic member formed to be foldable in the moving direction of the top panel and to be guided along the storage rail. .

[Action]

According to the present invention, when the top panel is moved to the storage rail, the extra length portion of the roller chain is hung on the storage rail that guides the guide roller by the roller shaft of the guide roller attached to the extra length portion. As a result, the length of sagging and sagging becomes very short.

Therefore, it is possible to reliably prevent the looseness of the extra length portion from hanging down below the lower guide roller of the top panel and being caught by the guide roller.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

FIG. 1 is a side view showing an example of a panel shutter according to the present invention, and FIGS. 2 and 3 are a front view and a side view of an elastic member used therein.

The same parts as those of the conventional example shown in FIGS. 7 to 9 are designated by the same reference numerals, and detailed description thereof will be omitted.

In this example, in the extra length portion 3a of the roller chain 3, the roller shaft 2 of the upper guide roller 1 protruding from the left and right ends of the top panel P ₁ and the roller shaft 2 of the guide roller 10 are kept at a constant distance.
11 is installed.

Each guide roller 10 has a top panel P ₁ on one end side.
Is supported by a bearing 14 provided on the other end side of an expansion / contraction member 13 which is connected to the upper part of the top panel with a hinge 12 so as to be vertically rotatable and is foldable in the moving direction of the top panel P ₁ , and is accommodated in the storage rail. You will be guided along 5.

The elastic member 13 includes a front plate 13a having a hinge 12 at its upper end and a rear plate 13b having a bearing 14 at its upper end, and the lower ends thereof are hinged with each other.
The structure is linked to each other.

Then, when the roller chain 3 is driven in the shutter opening direction and the top panel P ₁ moves from the sprocket 4 to the storage rail 5, the extra length 3a of the roller chain 3
Is accommodated in the top panel P ₁ in a state where the intermediate portion is hung by the roller shaft 11 of the guide roller 10 which is attached to the extra length portion 3a and is supported by the elastic member 13 so as to be guided by the accommodation rail 5. Move toward position.

As a result, it is possible to shorten the length by which the slack of the extra length portion 3a hangs so that the slack does not hang down below the lower guide roller 8 of the top panel P ₁ .

Therefore, when the roller chain 3 is driven in the closing direction of the shutter, the slack in the extra length portion 3a causes the slack in the top panel.
Or shutter becomes impossible fully closed caught on the lower guide roller 8 of P _1, it is possible to reliably prevent accidents top panel P ₁ may be damaged.

When the extra length portion 3a is very long, as shown in FIG. 4, a plurality of sets of front plates 13a and rear plates 13b forming the elastic member 13 may be consecutively connected by the hinges 16.

Next, FIG. 5 is a schematic side view showing another embodiment of the present invention,
FIG. 6 is a front view showing the main part thereof.

In this example, the top panel P ₁ moves to the storage rail 5 and the extra length portion 3a of each roller chain 3 slackens and hangs down, and the extra length portion 3a projects to the left and right ends of the top panel P _1. It is provided on a rocking stop guide 17 that prevents rocking outward from the lower guide roller 8 provided.

The anti-sway guide 17 is attached to a bracket 9 provided on the inner wall of the casing 6 along a position higher than the lower guide roller 8 of the top panel P ₁ that is vertically hung on the storage rail 5 and moves.

Further, in the anti-sway guide 17, the slack of the extra length portion 3a that hangs down from above is smoothly guided to the lower side of the guide 17, and at the same time, the slack of the extra length portion 3a that rises from the lower side. In order not to get caught in the guide 17,
It is formed of a metal plate bent in a V shape in cross section.

Then, the top panel P ₁ moves from the sprocket 4 to the storage rail 5 and moves toward the predetermined storage position, and the slack generated in the extra length portion 3a of the roller chain 3 causes the top panel P ₁ to move.
When it hangs near the lower guide roller 8 of P ₁ , its slackness is guided by the anti-sway guide 17 and is prevented from swinging outward from the lower guide roller 8 from the lower guide roller 8. It hangs downward.

This eliminates the possibility that the lower guide roller 8 of the top panel P ₁ is caught in the extra length portion 3a of the roller chain 3.

[Effect of device]

As described above, according to the present invention, when each panel connected by the roller chain is vertically suspended and stored in the storage rail, the extra length of the roller chain forms the top panel of the shutter curtain. There is a very excellent effect that it is possible to reliably prevent an accident in which the top panel is damaged by being caught by the lower guide roller or the shutter cannot be fully closed.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a panel shutter according to the present invention, FIGS. 2 and 3 are front views and side views of an elastic member used therein, and FIG. 4 is a side view showing a modified example thereof.
FIG. 6 is a schematic side view showing another embodiment of the present invention, FIG. 6 is a front view showing the main part thereof, FIG. 7 is a side view showing the structure of a conventional example, and FIG. 8 is a partial front view thereof. FIG. 9 is a schematic side view showing an operation which is a drawback of the conventional example. Explanation of symbols P _{1 to} P ₈ …… Panel, 1 …… Upper guide roller, 2 …… Roller shaft, 3 …… Roller chain, 4 …… Sprocket,
5 ... Storage rail, 8 ... Lower guide roller, 10 ... Guide roller, 11 ... Roller shaft, 13 ... Telescopic member, 14 ...
Bearing, 17 ... Anti-sway guide.

Claims (2)

[Scope of utility model registration request] 1. Each panel (P ₁ ) forming a shutter curtain
A pair of left and right roller chains (3) having roller shafts (2) of upper guide rollers (1) projecting from the left and right ends of (P ₈ ) attached at a predetermined interval rotate a sprocket (4) that rotates in the opening and closing direction of the shutter. ), The sprocket (4) is rotated in the shutter opening direction to wind up the roller chain (3), and the panels (P ₁ ) to
Each panel (P ₁ ) to (P ₇ ) excluding the bottom panel (P ₈ ) that forms the lower edge of the shutter curtain by sequentially increasing (P ₈ ) in the vertical state.
However, it moves to the storage rail (5) that guides the upper guide roller (1) while passing through the sprocket (4) while maintaining the vertical state, and in the state of being adjacent to the front and rear along the rail (5). In the panel shutter to be housed, the top panel (P ₁ ) forming the upper end of the shutter curtain is suspended from the sprocket (4) and moved up and down to the extra length portion (3a) of each roller chain (3). upper guide rollers that are projected to the left and right ends of the (P _{1) (1)}
The roller shafts (11) of the guide rollers (10) are attached to the upper part of the top panel (P ₁ ) at one end side with the roller shafts (2) of (1) being installed at a constant distance. And the top panel (P
₁ ) An elastic member (1
A panel shutter, which is supported by a bearing (14) provided on the other end side of 3) and is guided along the storage rail (5). 2. Each panel (P ₁ ) forming a shutter curtain
A pair of left and right roller chains (3) having roller shafts (2) of upper guide rollers (1) projecting from the left and right ends of (P ₈ ) attached at a predetermined interval rotate a sprocket (4) that rotates in the opening and closing direction of the shutter. ), The sprocket (4) is rotated in the shutter opening direction to wind up the roller chain (3), and the panels (P ₁ ) to
Each panel (P ₁ ) to (P ₇ ) excluding the bottom panel (P ₈ ) that forms the lower edge of the shutter curtain by sequentially increasing (P ₈ ) in the vertical state.
However, it moves to the storage rail (5) that guides the upper guide roller (1) while passing through the sprocket (4) while maintaining the vertical state, and in the state of being adjacent to the front and rear along the rail (5). In the panel shutter to be stored, the top panel (P ₁ ) forming the upper end of the shutter curtain moves to the storage rail (5), and the top panel (P ₁ ) is hung from the sprocket (4) and moved up and down. A lower guide in which the extra length (3a) of each roller chain (3) slackens and hangs down, and the slack of the extra length (3a) projects from the left and right ends of the top panel (P ₁ ). A panel shutter characterized by being provided with an anti-sway guide (17) for preventing the roller (8) from swinging outward.